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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/71/1/AJ0710010066
Last checked: 12/08/2016
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| Publication Type:
| Refereed |
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| Author(s): | Hurto, K. A.;
Turgeon, A. J. |
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| Author Affiliation: | Hurto: Assistant Professor, Department of Plant and Soil Sciences, University of Massachusetts, Amherst, Massachusetts; Turgeon: Associate Professor, Department of Horticulture, University of Illinois, Urbana, Illinois |
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| Title: | Effect of thatch on residual activity of nonselective herbicides used in turfgrass renovation |
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| Source: | Agronomy Journal. Vol. 71, No. 1, January/February 1979, p. 66-71. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Thatch; Herbicide residues; Residual effects; Turf Renovation; Paraquat; Glyphosate; Lolium perenne; Seeding; Establishment rate; Growth factors; Seed germination; Absorption
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| Abstract/Contents: | "Paraquat (1,1'-dimethyl4,4'-bipyridinium ion) and glyphosate (N-[phosphonomethyl]glycine) are used for controlling existing vegetation in turfgrass renovation programs. While these nonselective herbicides are rapidly inactivated in many soils, the effect of a thatch layer at the soil surface on the residual activity of these herbicides has not been reported. The purpose of this study was to determine the effect of thatch on the residual activity of paraquat and glyphosate as it affects the establishment of perennial ryegrass (Lolium perenne L.) from seed. Paraquat and glyphosate were applied to Kentucky bluegrass (Poa pratensis L.) turf growing on an Aquic Arquidoll (Flanagan silt loam) at thatchy and thatchfree sites. Establishment of perennial ryegrass on paraquat-treated thatchy sites was inhibited due to herbicide residues in the thatch. Modification of the thatch by soil incorporation following core cultivation, or removal of the thatch layer by vertical mowing, significantly improved the percent cover of ryegrass on these sites. Glyphosate showed no adverse affects on perennial ryegrass development. Placement of clipping debris containing paraquat residues onto the soil surface inhibited emergence of perennial ryegrass and Kentucky bluegrass in greenhouse studies. Adsorption of paraquat by thatch was rapid, but the tenacity with which it was adsorbed appears to differ from soil as evidenced by field and laboratory studies." |
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| Language: | English |
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| References: | 27 |
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| Note: | Figures
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hurto, K. A., and A. J. Turgeon. 1979. Effect of thatch on residual activity of nonselective herbicides used in turfgrass renovation. Agron. J. 71(1):p. 66-71. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/71/1/AJ0710010066
Last checked: 12/08/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 22 .A45 |
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